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Proceedings Paper

Study using nuclear techniques of waveguides produced by electromigration processes
Author(s): Giancarlo Battaglin; Giovanna De Marchi; Aurora M. Losacco; Paolo Mazzoldi; Antonio Miotello; Alberto Quaranta; Antonio Valentini
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Paper Abstract

Nuclear Techniques, such as Rutherford Backscattering Spectrometry and Nuclear Reaction Analysis , have been extensively used in the near surface analysis of glass. They provide a non destructive analytical method, with high depth resolution and without radiation effects induced by the analyzing beam. In particular we used Nuclear Techniques for the analysis of chemical and physical processes involved in optical guide formation. Optical waveguides were produced by using electromigration from metallic films and a comparison was made with ion-exchange processes. A systematic study of the mechanisms which govern the in-depth migration of Ag, Au and Cu ions in glasses, in the presence of an external field, was performed in orr to create buried waveguides. Metallic films were evaporated on the surface of glasses of different composition. Electric fields, ranging from 300 to 1000V/cm, were applied across the glasses for different times and temperatures. The metal ion distribution and glass composition modifications were analyzed. Theoretical and experimental profiles have been compared and the importance of the different parameters (electric field, glass temperature, metal surface layer thickness, process duration) have been high lighted. The electromigration technique was also applied for the formation of strip waveguides.

Paper Details

Date Published: 1 August 1991
PDF: 10 pages
Proc. SPIE 1513, Glasses for Optoelectronics II, (1 August 1991); doi: 10.1117/12.46052
Show Author Affiliations
Giancarlo Battaglin, Univ. di Venezia (Italy)
Giovanna De Marchi, Univ. di Padova (Italy)
Aurora M. Losacco, Centro Laser (Italy)
Paolo Mazzoldi, Univ. di Padova (Italy)
Antonio Miotello, Univ. di Trento (Italy)
Alberto Quaranta, Univ. di Padova (Italy)
Antonio Valentini, Centro Laser (Italy)

Published in SPIE Proceedings Vol. 1513:
Glasses for Optoelectronics II
Giancarlo C. Righini, Editor(s)

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